观看:SpaceX准备进行另一次星舰发射尝试
Watch: SpaceX Gears Up For Another Starship Launch Attempt

原始链接: https://www.zerohedge.com/technology/watch-spacex-gears-another-starship-launch-attempt

SpaceX将于今晚从德克萨斯州博卡奇卡发射星舰测试飞行8号,发射窗口为60分钟,从美国中部时间下午5:30开始,此前周一的发射尝试因故取消。主要目标是测试星舰将星链“模拟器”卫星部署到近地轨道,并进行多次再入实验。为提高上级火箭的可靠性,进行了多项升级,包括改进前襟翼、增加推进剂容积和重新设计航空电子设备。关键测试包括:部署星链模拟器(预计会在再入大气层时烧毁)、在太空进行单台猛禽发动机的重新点火以及带有瓷砖移除和替代金属瓷砖测试的再入压力测试。超重型助推器则升级了航空电子设备和改进电力分配。计划尝试“筷子”式捕获,但如果安全条件不满足,则会在墨西哥湾进行软着陆。根据Polymarket预测,成功捕获的几率为78%。


原文

SpaceX canceled Monday's Starship/Super Heavy test flight (Flight Test 8) after failing to resolve technical issues with the mega-rocket in the final minute of the countdown. Now, Elon Musk's rocket company has announced that Flight Test 8 has been rescheduled for Thursday evening. 

"Counting down to Starship's eighth flight test. Weather looks favorable at the pad, and the 60-minute launch window opens at 5:30 p.m. CT," SpaceX wrote on X late in the afternoon. 

 

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Just over six weeks after SpaceX's Starship-Super Heavy Flight Test 7 lifted off from Boca Chica, Texas, ending in a dramatic spectacle—the massive booster successfully caught by 'Chopsticks' while Starship itself was lost in a fireball over the Atlantic Ocean—Elon Musk's space company is set to conduct Flight Test 8 of the world's largest rocket this evening. 

Starship's launch window opens at 1730 local time at SpaceX's Starbase facility in south Texas. The primary goal of this launch is to test Starship's ability to deploy Starlink "simulator" satellites into low Earth orbit. 

Launch Details:

  • Scheduled for Monday, March 3

  • 60-minute launch window opens at 5:30 p.m. CT

  • Live webcast starts 40 minutes before liftoff on SpaceX's X account and X TV app

Post-Flight 7 Investigation & Upgrades [upgrades made after Flight Test 7's firey demise of Starship]: 

  • Hardware and operational changes made to increase upper stage reliability

  • Forward flap upgrades reduce reentry heating exposure

  • Propulsion system enhancements include a 25% increase in propellant volume

  • Avionics system redesigned for added capability and redundancy

Flight Objectives:

  • Follows same suborbital trajectory as previous missions

  • First payload deployment test (four Starlink simulators)

  • Multiple reentry experiments to improve upper stage return and catch capabilities

  • Super Heavy booster launch, return, and catch attempt

Key Experiments & Tests:

  • Starlink simulators to be deployed, but expected to burn up on reentry

  • Single Raptor engine relight in space test planned

  • Reentry stress tests: Tiles removed to test vulnerable areas, Metallic tile alternatives tested, including active cooling, and Structural stress tests on rear flaps at max reentry pressure.

  • Catch fitting thermal performance test

  • Radar sensor accuracy tests on chopsticks for improved vehicle retrieval

Super Heavy Booster Enhancements:

  • Upgraded avionics, including a more powerful flight computer

  • Improved power/network distribution and smart batteries

Booster Return & Catch Criteria:

  • Safety measures in place: Healthy systems required on booster tower and Final manual command needed from Flight Director before boostback burn. 

  • If conditions are not met, booster will soft splashdown in the Gulf of Mexico

The crypto-based online betting marketplace Polymarket has nine bets on today's test flight, including the following: Will "Chopsticks catch Super Heavy?" Those odds stand at 78%. 

Watch Test Flight 8 Here:  

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